endocrine communication Flashcards
exocrine glands
excrete hormone like products into ducts then excrete it
examples of exocrine glands
mammary gland
gastric gland
sebaceous gland
examples if steroid hormones
testosterone and oestrogen
properties of steroid hormones
soluble in lipid so pass through phospholipid bilayer and have effect on DNA
first and second messenger mechanism
hormone binds
g protein moves along membrane
activates adenyl cyclase
ATP__ cAMP
this can open channel proteins or activate enzymes
adrenal gland
lay above kidneys
release adrenaline and corticoids
adrenal cortex
releases multiple corticosteroids such as aldosterone and cortisol
adrenal medulla
releases adrenaline and noradrenaline
adrenaline
prepare for fight or flight
corticosteroids
any group of steroid hormones produced in the adrenal cortex
what hormone is released by the zona glomerulosa
mineralcorticoids
e.g. aldosterone
role of aldosterone
control concentration of sodium and potassium in blood and maintains blood pressure
hormones released by zona fasciculata
glucocorticoids
e.g. cortisol
role of cortisol
control metabolism in liver
stimulate glucose production
hormones released in the zona reticularis
androgens and cortisol
